CAN COMPOSED OF ELECTROLYTICALLY CHROMATED STEEL SHEET

摘要

Cans for use in canning foods have to be able to withstand the high temperature during heat sterilization and for that reason so-called TFS sheet material comprising steel sheets with a chromium coating plus an organic coating have been unsuitable. The invention disclosed involves strengthening the bond between the TFS sheet and the organic coating rendering it suitable for use in canning foods. The invention is based on the recognition that an electrolytically chromated steel sheet having a specified relationship between an oxygen peak and chromium peak is Auger electron spectroscopy has very good adhesion to organic coating.